The Shell Series of professional hinges is able to accommodate 5/16 to 3/8 inch (8 to 10 millimeter) tempered safety glass. A variety of four styles, including Wall Mount and Glass-to-Glass types, gives design flexibility. They are made of solid brass with all moving parts (pins and springs) in stainless steel. Shell Hinges are self-centering, with four springs for maximum retention strength. Optional 5º Pivot Pin Sets are available to accommodate "off angle" installations. Some advantages of pivot type hinges include the fact that they carry the majority of the weight on the bottom, and have the ability to be inset from the wall, enabling clearance for towel bars and other projections. The Shell Series is adaptable to CRL's Deluxe Header System for shower enclosures not extending to full ceiling height.